I recently rediscovered the "Cat and Mouse" stories by Suze. The first story is "Building A Better Mousetrap". The second is "Baiting The Trap", but my all time favorite is "Belling the Cat". It is hot. Regretably it's incomplete and will probably remain that way. If you don't have a kink for Dominance/Submission you probably won't like it. I love it. It pushes every single one of my buttons.
Title: Belling the Cat
Author: Suze
Pairing: Duncan/Methos
Rating: Adult
Summary: Duncan pounces, Methos ponders, and Amanda leaves a lasting impression. Sorry, Amanda lovers, this part is mostly D/M sex.
Read the story You probably should read the first two first:
Building A Better Mousetrap and
Baiting The Trap.